2393-6886 2393-6886 S2393-68862020000200133 10.29112/ruae.v5.n2.8 Uruguay 00 00 2020 00 00 2020 5 2 133 135 2016 533 533 452-4 2007 33 33 212-3 2014 23 1 1 1-2 2014 19 19 1-5 2017 2012 7 7 528-30 2018 13 4 4 411-7